/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMModel/RigVMController.h
Mark a function as public/private in the function library.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=RigVMController) bool MarkFunctionAsPublic ( const [FName](API\Runtime\Core\UObject\FName) & InFunctionName, bool bInIsPublic, bool bSetupUndoRedo, bool bPrintPythonCommand )